Double-blind evaluation of namoxyrate, codeine, aspirin, and placebo.
D000328:Adult; D000368:Aged; D000375:Aging; D000700:Analgesics / Q000009:adverse effects / Q000627:therapeutic use*; D001241:Aspirin / Q000627:therapeutic use*; D001827:Body Height; D001835:Body Weight; D002986:Clinical Trials as Topic; D003061:Codeine / Q000009:adverse effects / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010919:Placebos; D012723:Sex
D000700:Analgesics; D010919:Placebos; D001241:Aspirin; D003061:Codeine